Closure means for vertical coking retorts



Ma.rch 12, 1935 G. GOETZ CLOSURE MEANS FOR VERTICAL COKING RETORTS 3 Sheets-Sheet 1 Filed July 21, 1932 March 12, 1935. GOETZ 1,994,129

' CLOSURE MEANS FOR VERTICAL COKING RETORTS Filed July 21, 1952 5 Sheets-Sheet 3 l l L I U- llllllh W LE JKK I Patented Mar.f12,1935 I l,99 4*,129

UNITED-STATES CLOSURE MEANS non VERTICAL ooKiNG RETORTS Gottfried Goetz, Webster Groves, M0., assignor to Ludwig Kern, Webster Groves, Mo.

I 7 Application July- 21 1932, Serial No. 623,703

2 Claims. (01. 202252) This invention relates to closures, and with reby means of hinges. 7. The hinges 7 are provided ,gard to certain more specific-features, to closures in. suitable number, and of suitable strength,

particularly adapted for use in connection with safety to support the weight of thedoorsB. The the discharge ends of coking retorts, coke accuframe is supported, preferably, upon beams 9 5 mulators, and the like. a such as are provided for-the support of the retort 5 Amongthe several objects of the invention may Walls 1. Together, theframe 5 and thebeams .9 be noted the provision of a closure of the class may be considered the door frame for the doors}. described which is oapableof supporting a heavy Each of the doors 3 preferably comprises acast load in a relatively gas-tight manner, a closure steel section 11 (see Fig. 2), provided in a central of the class described 'includingmeans for maportionwith a series of deep recesses 13. In' the 10 nipulation thereof which are easily operated from recesses 13 are cast orotherwise secured blocks of the'exterior of the device to'which the closure is refractory material 15, which serve to protect the applied, and which are adapted to apply force in steel portionsll against excessiveheat withinthe increased amount, as the doors are closed, at the retort. Around the outer edge of each door 13,

15 time atwhich the increased force ismost advanta-' and at the ends thereof, a groove 17-is provided. 15 geous; the provision of a closure of the class de- The groove 17 is desirably filled with a sealing scribed which is readilyoperated in either direcmaterial, such aswater, oil, asbestos cord, plastic .-tion-, that is, to open or to close. thedevice to clay, or the-like, in order more effectively to make which it is applied; and the provisionof a closure the doors gas-tight in their closed position. The

20 -of the class described which is relatively'simple sealing is effected by pressingthe material in the {20 and economical in construction and operation. groove 17, which thus surrounds the entire dis- Other objects willbe part obviousandin part charge end of the retort, between the doors 13 pointed out hereinafter. H V and the frame work 5.

The invention accordingly comprises the ele- One of'the doors 3 is providedon its under side .25 ,ments and combinations of'elements, features of with a flange 19, which overlaps the other door 3 ,25

construction, and arrangements of parts which when the doors are in closed position, thereby to will be exemplified in the structure hereinafter make the juncture between the two doors 3 reladescribed, and the scope of the application of tively gas-tight.

.which will be indicated in the following claims. As will be seen from Fig. 2, the doors 3 swing f In. the accompanying drawings, in which is downwardly on the hinges 7 from their closed po- :30

illustrated one of various possible embodiments sitionlfull lines) to their open position (shown of the invention, in dotted lines). The swinging of the-doors is Fig. l is a top plan View of a closure embodying effected by door-operating means, which will next the'present invention; be described. a Fig. 2 is a vertical cross section taken substan- Journaled in bearings 21 on the side beams 9,35 @t a y :on line 2, O F g. 1; are longitudinal shafts 23. The shafts 23 are Fig. 3 is a front elevation of the closure shown preferably slightly eccentric, to provide a slight" in Fig. 1; and, V I 1 additicnalpressure at just the time the doors are Fig. 4 is a: view similar to Fig.3, showing an closed. Each shaft 23 has keyed thereto, or

' alternative form of the invention. i a otherwise secured against rotation, a plurality of ,.Similar reference characters indicate corre-' door-operating levers 25, each of which carries spending parts. throughoutthe several views of at itsouter extremity or free end 26 a roller 27. the drawings. r V In suitable locations on the undersides of the Referring-now morefparticularly to Figs..1 and doors 3 to engage the rollers 27 are, provided pro- 2, numeral 1 indicates generally the walls .of a jections or cam surfaces 29, inwardly terminat- 14 vertical coking retort or the like, which are to be ingwith notches 30. It will be seen that when the closed at the lower end thereof; It is tolbe unshafts 23 are rotated in such direction'asto move derstood that the particular construction of the the levers 25 in an upward direction, the rollers walls 1 is of no consequence toIthe present inven- 27 will engage the projections 29 and thereby 13 011., force the doors 3 upwardly into closed position,-

Numeral 3 indicates the doors, or closure itself until ultimately the rollers 27 drop into the which is formed in two longitudinal sections notches-30,1ocking the doors closed. adapted, when closed, to completely cover the Referring now more particularly to Figs. land bottom of the retort. The doors 3 are supported 3, it will be seen that the longitudinal shafts 23 in a preferably caststeel frame 5 (see Fig. 2), extend outwardly from the ends of the retorts.

Supported in bearings 31 on the exterior of the retort is a transverse shaft 33, which extends, preferably, throughout the whole length of the retort bench. The shaft 33 is motivated by any suitable means, such as an electric motor. It may be kept continuously rotating, as will be apparent hereinafter.

Also :supported "on *the exterior of "the retort, as inzbearings 35,.is a verticalscrew 37 carrying on its lower end a bevel gear 39. Keyed to the transverse shaft 33 in such a manner that rotation relative to the shaft isprevented, .but longitudinal sliding on the shaft'is permitted, area pair of bevel gears 41 and 43 adapted to mesh with the bevel gear 39. ;A.lever 45:.isprovided for each of the bevel gears 41 and- .43. :By'.means of the lever 45, either thebevel gear 41 or the bevel gear 43 may be meshed withthe-bevel gear with the gear 39, the screw 37 is rotated in one direction while when" the gear 43 is brought into =-engagement with the-gear '39, the screw '37 is rotated "in the reverse 1 direction. The gears "41 and 13 are preferably slidable within 'such range that' they-may-both be-disengaged-frem the gear 39,- whereby the shaft 33 may rotate continuously, ---but whereby the screw 37 may be rotated only "at such times as desired. 7

-Carried-on the screw 37is a sliding block-or *nut'47. The block :47 isprevented from rotat- -ing, ;-relative to thescrew 37, 'by arearwardpro- -ject'ion;49 (see --Fig. 1-) which slides in a-track 51. It 'Will' be -seen' thatas the screw 37 is' rotltted, the block 47 is moved 'vertically upwardly or-doWnwardlyydepehding uponthe direction of rotation of'the-shaft*33.' The vertical movement -o'f -'the "block '47 is at 'a tremendous I mechanical advantage over 'the powerdelivered by the =rotating shaft 33. r This vertical movement of the block -47 is used 'directly to-effect opening and closing "of the doors'3. The elfect'is secured by -a two bar linkage comprising links 53 rotatably fixed at one end to the block '47, and pivoted-at the 'otherend to lever 55 mounted on theprojectingendsof shafts 2-3. The levers -55-are-sim- -ilar i n-shape tothe door operating levers 25, and

"are'likewise non-rotatably aflixed to the longitudinal shafts 23.

Itwill be seen that, "as the -block"47 is raised on the screw=37,the linkages comprising the links -53 and -5-5-rotate "the longitudinal shafts 23 in *suc'hqdirection 'as :to move the door-operating levers upwardly, to close the doors 3. The nearer the block 37 approaches to thetopo'f the "screw 37, the slowerpinkgeneral, the shafts 23 are 'rotated, because the component of movement of the block 47 that "is {translated into angular --rotation of the shafts 23" becomes decreasingly *smallerfibut-since the force appliedto the-block 47 does not=varyythis means -that the-forcetending to shut the doors '3 increases because it is applied over a lesser angular "amplitude; This -is distinctly '--a.dvantageous, as the necessarily "tig'htfit of the doors (in-orderto secure the-gasv stops, :and with it the 'block 47 stops moving.

Inasmuch as the block-47 is near the top-of its ;-range=of movement, thelinkages comprisingbars 53 and 55 are most near to their straight position, in which position they have the greatest holding or looking effect against reopening of the doors '3. This enhanced holding effect is particularly advantageous when it is considered that, in this position, the doors must support the weight of theentire charge placed in the retort.

Opening of the doors is accomplished by meshing the other of gears 41 or 43 with the gear 39,

in such manner that the "screw 37* is rrotated to move .the block -47 downwardly. S Downward movement of the block 47 rotates the longitudinal l0- tshafts23 into such directions, respectively, that.

thedoor-operating levers 25 are'moved down- :wardly. Aftera'relatively slight movement, the rollers 27 disengage from the'projections 29 on .th'ezdoors.-3, and'ltheefdoors 3 are thereafter free asthe levers 25 are rotated'out of the way. In

most evertically downwardly (see dotted lines,

Fig. 2) and the doors 3 hang open in a similar vertical position, leaving the lower fen'd {ofthe retort completely '-open --a'nd"-free of obstruction. "This --'complete opening is necessary in the case "of i the ordinary lump coke retortsfias-the charge 15 ';to.fall -open: ufider their own weight as quickly their'fullyopen position, the levers 25, hang al- 39. It will be seen that when the geari41 meshes 20 in the retort falls therefrom 'in asubstantially Q5 -s'ing-le, large block. -'If the 'c'losure 'is*to be used for briquette c'oking' retorts,- it "is not necessary that thadoors' 3 openall the -way5a's the briquettes are fully capable "of discharging through only partially open doors, that'i's, doors openmore to afunnelshape.

n will be' apparent that-the slid-ing block spa screw method of operating the longitudinalfdo'oroperating shafts 23,'is but onetime number-d:

"methods which may be sed; "{For example; an #5 Fig. 4 there is'shown an electrical method emp- -erating, which comprises a 've'rticalEsOlenoid 57 "-having 'a movable core "59 to-"the ends of which -in'g block -andscrewembodiment.

Similarly, the sliding block-and screw arrange- 815 ment may be substituted by a hydraulic cylirider :and piston, arranged in-the same general manner -as is solenoid 57 in l 'igg-iz It"is tlins appvare'rlt that the invention is independent of the"'pa'rticularpower means usedforioperatin'g the doors.

*The present invention i is particularly "adapted for use in connection with the-vertical coking retorts 4 described and claimed} in any c'o-pending patent applications, Serial Numbers 6231700 Enid 623,701, filed July 21, 1932. P H

In view of the above, it will be seen thatithe, several objects of the=inventionare'achieved'and other advantageous results attained-*1 As many changes 1 could be made in 'cai'ry'ing out the above=constructions with'out departing i from the scope ofthe invention;it is intentled that all matter c'ontained in the above description hr shown in the accompanying drawings'fshall' beinterpreted as illustrative *and not in a. iliniiting a sense.

Iclaim: v -1.-Closure *means for vertical coking retorts comprising a pair of oppo'sitely swung doors hinged to 1 open downwardly -from the sides df an opening to be closed, saiddoors being so shaped secured to each of said shafts, said lever having a free end, a roller on said free end adapted to engage and slide upon the under side of its respective door, whereby, when said shafts are rotated in the direction of closing of their respective doors, said rollers engage and slide upon the under surface ofsaid doors to force said doors into a closed position, a motivated vertical screw, a sliding block moved vertically by said screw, a lever non-rotatably secured to the end of each shaft, and a link rotatably joining the end 01' each such lever to the sliding block, whereby, upon vertical movement of said block, said shafts are rotated in the desired direction in such manner that, as the doors approach a closed position, the rotation of the shafts is at a decreased velocity providing greater closing force upon the doors.

2. Closure means for vertical coking retorts comprising a pair of oppositely swung doors hinged to open downwardly from the sides of an opening to be closed, said doors being so shaped that together they completely close oil the openingjwhen in a closed position, a pair of shafts" allocated onefor each door, means supporting said shafts parallel to, but beneath the hinging axis of said doors, and at least one lever non-rotatably secured to each of said shafts, the under side of each door being provided with a cam surface, the said lever having a free end, a roller on said free end adapted to engage and slide upon said cam surface, whereby when said shafts are rotated in the direction of closing of their respective doors, said rollers engage and slide upon said cam surfaces to force said doors into a closed position, eachof said cam surfaces including a notch into which the roller fits when the-door is in a fully closed position.

GOTI'FRIED GOE'I'Z. 

